Switzerland was a hub for China’s spy networks in the Cold War.
During the Franco-Prussian War a British wine merchant was imprisoned in Cologne, accused of being a spy. The public clamoured for the government to secure his release, but wartime diplomacy was not so straightforward.
A history of the dirty business of wiretapping.
The 1930s spy ring who informed on technological advances in the defence industries.
Ethel Rosenberg is revealed as a loving mother, a committed communist and a talented performer.
It is often claimed that press censorship came to an end in England at the close of the 17th century. But it persisted, thanks to an unsavoury network of government spies.
The motives and damage inflicted by George Blake.
Puncturing the myths surrounding ‘Agent Sonya’.
Venice developed the most sophisticated intelligence network in Renaissance Europe, securing it from enemies within and without.
How a government-sponsored network of civilian agents complemented Wellington's own intelligence gathering.